@article{ref1,
title="Vision in an empty visual field",
journal="Aerospace medicine",
year="1962",
author="ten DOESSCHATE, ",
volume="8",
number="",
pages="91-101",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}